<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31341491</termId><termName>vinegar syndrome</termName><termType>PT</termType><termNote><![CDATA[ Spontaneous decay of photographic film on a cellulose triacetate base characterized by a strong vinegar aroma. Such deterioration is irreversible. The term is used most often in the context of motion picture film. ]]></termNote><termCreatedDate>2026-03-30 20:32:05</termCreatedDate><relation><relationType>UF</relationType><termId>31341492</termId><termName>acetic acid syndrome</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341493</termId><termName>syndrome, vinegar</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31317732</termId><termName>degradation</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31344147</termId><termName>photographic film</termName><termType>PT</termType></relation></term>  </Zthes>